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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 144 · 40 sums
TalentJR

The method (Flip and multiply): a/b × c/d = (a × c)/(b × d), then simplify. A whole number n is n/1. a/b ÷ c/d = a/b × d/c. Decimal × decimal: multiply as whole numbers; the answer has as many decimal places as both numbers together — 1.2 × 0.3 = 0.36. Decimal ÷ decimal: multiply both by 10 (or 100) first — 2.4 ÷ 0.6 = 24 ÷ 6 = 4.

NameDateTime takenScore ___ / 40
  1. 1.1.1 × 0.7 =
  2. 2.3/4 × 7 =
  3. 3.One roll of ribbon has 7.6 m. How many m do 12 of them make in all? =
  4. 4.1/6 × 3/4 =
  5. 5.6.6 ÷ 0.6 =
  6. 6.2/9 × 1/9 =
  7. 7.1/5 × 13 =
  8. 8.One packet of rice weighs 1.4 kg. How many kg do 7 of them make in all? =
  9. 9.4.26 ÷ 2 =
  10. 10.One jug of milk holds 8 L. How many L do 10 of them make in all? =
  11. 11.1/2 ÷ 1/3 =
  12. 12.5/7 × 11 =
  13. 13.One roll of ribbon has 8.1 m. How many m do 3 of them make in all? =
  14. 14.4/9 ÷ 6/7 =
  15. 15.2/9 × 7/8 =
  16. 16.3/5 × 4/7 =
  17. 17.1/6 ÷ 7/9 =
  18. 18.2.8 ÷ 0.7 =
  19. 19.5/6 × 5/6 =
  20. 20.1 ÷ 0.5 =
  21. 21.3/5 ÷ 7/9 =
  22. 22.38.45 ÷ 5 =
  23. 23.6.1 × 0.8 =
  24. 24.7/8 ÷ 1/5 =
  25. 25.3/4 ÷ 5/9 =
  26. 26.1/9 × 15 =
  27. 27.6.7 × 0.7 =
  28. 28.4/9 ÷ 1/3 =
  29. 29.3/4 × 8 =
  30. 30.9.8 × 0.8 =
  31. 31.1/2 ÷ 4/7 =
  32. 32.4/5 × 5 =
  33. 33.4/7 × 1/6 =
  34. 34.4/5 × 9 =
  35. 35.6/7 ÷ 1/4 =
  36. 36.One bag of potatoes weighs 8.8 kg. How many kg do 2 of them make in all? =
  37. 37.4/5 × 2/3 =
  38. 38.4.8 ÷ 0.8 =
  39. 39.4.5 × 0.2 =
  40. 40.4/7 × 1/8 =

Answer key

  1. 0.77
  2. 21/4
  3. 91.2
  4. 1/8
  5. 11
  6. 2/81
  7. 13/5
  8. 9.8
  9. 2.13
  10. 80
  11. 3/2
  12. 55/7
  13. 24.3
  14. 14/27
  15. 7/36
  16. 12/35
  17. 3/14
  18. 4
  19. 25/36
  20. 2
  21. 27/35
  22. 7.69
  23. 4.88
  24. 35/8
  25. 27/20
  26. 5/3
  27. 4.69
  28. 4/3
  29. 6
  30. 7.84
  31. 7/8
  32. 4
  33. 2/21
  34. 36/5
  35. 24/7
  36. 17.6
  37. 8/15
  38. 6
  39. 0.9
  40. 1/14

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